help with regexp on txt file

Hi all,

I have a txt file which contain in one row: (example)

16/12/2020 18:30:59.443 abcabcabcabcabcabcabc Vco 7000 Ico 3200

I succeeded to capture the date and time and i need help to capture the numbers after specific name like Vgr or Igr. I want the numbers 7000 and 3200.

For the date and time i used th expresion:

expression_date = ['(?<day>\d+)/(?<months>\d+)/(?<year>\d+)'];

Date=regexp(fid{1,1},expression_date,'match');

expression_time = ['(?<hour>\d+):(?<minute>\d+):(?<second>\d+)'];

Time=regexp(fid{1,1},expression_time,'match');

Thank you!

Answer 1

[Ive J]

str = '16/12/2020 18:30:59.443 Ico 3 Vco     1e7  Ico -3.2e+8  Vco 1.12e-7 Ico  -3200 Vco 2.345e14';
regexp(str, '(?<=(Vco|Ico)\s*)[+-]?\d+[.]?(\d+)?[e]?[+-]?(\d+)?', 'match')


  1×6 cell array

  Columns 1 through 5

    {'3'}    {'1e7'}    {'-3.2e+8'}    {'1.12e-7'}    {'-3200'}

  Column 6

    {'2.345e14'}

[idam hamawi]

Thank you!

[idam hamawi]

I still have a small issue with negative numbers, do you know why?

[Ive J]

Look at the updated answer.

[idam hamawi]

Thank you, you are really helped me.

One last thing if you can.

I have a number: 1.8e-07

Do you know how can i read that?

[Ive J]

Check it now.